Pecan
Pecan (pe*kan") , noun
[Compare French pacane the nut.]
(Botany) A species of hickory (Carya olivaformis), growing in North America, chiefly in the Mississippi valley and in Texas, where it is one of the largest of forest trees; also, its fruit, a smooth, oblong nut, an inch or an inch and a half long, with a thin shell and well-flavored meat.